Skip to content
3UM3-B by Dixon Valve | Pneumatic Quick Disconnect Coupling | U-Series | 3/8" Male NPT x 3/8" Automatic Universal | Socket | Nitrile Seal | Brass

3UM3-B by Dixon Valve | Pneumatic Quick Disconnect Coupling | U-Series | 3/8" Male NPT x 3/8" Automatic Universal | Socket | Nitrile Seal | Brass

Save $2.32 Save $2.32
$20.91
$20.91 - $20.91
$20.91
$18.59
$18.59 - $18.59
$18.59

Dixon Valve & Coupling
Pneumatic Coupling: U-Series Automatic Universal Coupler (Male Threads)
Can I get a discount on my purchase?

Our listed prices are our lowest possible price with current costing but when volumes/value are high enough sometimes we can pass on a discount from the manufacturer.

Some products have predefined quantity discounts that will apply automatically, those pages have a table near the price describing the discount teirs.

If you feel your purchase quantity of a particular product is very large and want us to investigate with the manufacturer please feel free to Contact Us.

What if my item is out of stock?

All customers get an email regarding the shipping time frame of their purchase, usually within the business day. If your item is in stock we will ship within 1 business day, otherwise, the email will contain a lead time. If you do not receive this email, we recommend checking your email's spam folder. If you have any questions at that point please do not hesitate to Contact Us or chat below!

Can I get free shipping?

Shipping will calculate as free instantly if your order value exceeds $5000.

Some exceptions apply.

Free Freight is only available for the Contiguous USA.

Specifications for Variant SKU: 3UM3-B Dixon
Series: U-Series
Shape (Orientation): Straight
Ends Configuration: 3/8in Female Semi-Universal QD Interchange, 3/8in Male NPTF
Material(s): Brass
Seal Material(s): Buna-N/Nitrile Rubber
Compatibility & Interchange:
  • 2U-Series: 2U-Series 6-in-1 (ARO 210, Industrial, Truflate, Lincoln, Italian, and CEJN 320)
  • 3U-Series: 3U-Series 4-in-1 (ARO 310, Industrial, Truflate and CEJN410)
  • Parker UC-Series, Hansen Auto-Flo 23 and Coilhose Series UC
Construction:
  • Machined components are manufactured using solid bar stock.
  • Stainless steel springs. Carbon steel balls and retaining rings.
  • Valve components are machined from solid brass bar stock.
  • Nitrile (Nitrile Rubber) seals are standard. Providing a temperature range of -40°F to 250°F (-40°C to 121°C).
Safety Notes:
  • It is important to be safe when installing quick disconnect couplings into a pneumatic circuit. Never install a pneumatic coupling directly into an air tool, use a piece of hose that is at least 18" long, between the tool and the coupling, to prevent damage to the coupling. To protect the operator, safety devices, such as a safety check valve and safety cable should be installed in case there is a hose or coupling failure.
  • Note: Many competitive Universal couplings are unable to match the performance capabilities of the Dixon U-Series. Although the universal coupler permits multiple series nipples to mate with one coupler, it is recommended to match like series couplers and nipples. When using a universal coupler, the lower performance rating between the coupler and the nipple must take precedence.
  • Dry Air: Some pneumatic applications require the pressurized air to be 'dried' to ensure proper operation of equipment and/or application of product (ie. Auto body shops). It is best to match like series couplers and nipples in these applications. If it is necessary to use a Universal coupler, lube the seal and valve area regularly to ensure reliable service.
Additional Information:
U-Series | Automatic Universal Coupler (Male Threads)
Part
Number		 Coupling
Type		 Body
Size		 Threads Material Length Max.
OD		 Hex Max. Operating
Pressure		 Burst Pressure
When Connected To:
2UM2-B Socket/Female 1/4" 1/4" - 18"
Male NPT		 Brass 2.44"
(62.0mm)		 0.92"
(23.4mm)		 3/4" 300 PSI
(20 bar)
  • Steel DF Plug: 2,800 PSI (193 bar)
  • Steel CJ Plug: 9,500 PSI (655 bar)
  • Steel J Plug: 6,400 PSI (441 bar)
  • Steel M Plug: 4,300 PSI (297 bar)
2UBM2-B Socket/Female 1/4" 1/4" - 19"
Male BSPP		 Brass 2.44"
(62.0mm)		 0.92"
(23.4mm)		 3/4" 300 PSI
(20 bar)
  • Steel DF Plug: 2,800 PSI (193 bar)
  • Steel CJ Plug: 9,500 PSI (655 bar)
  • Steel J Plug: 6,400 PSI (441 bar)
  • Steel M Plug: 4,300 PSI (297 bar)
2UM3-B Socket/Female 1/4" 3/8" - 18"
Male NPT		 Brass 2.44"
(62.0mm)		 0.92"
(23.4mm)		 3/4" 300 PSI
(20 bar)
  • Steel DF Plug: 2,000 PSI (138 bar)
  • Steel CJ Plug: 8,000 PSI (552 bar)
  • Steel J Plug: 4,000 PSI (276 bar)
  • Steel M Plug: 2,000 PSI (138 bar)
2UBM3-B Socket/Female 1/4" 3/8"-19"
Male BSPP		 Brass 2.44"
(62.0mm)		 0.92"
(23.4mm)		 3/4" 300 PSI
(20 bar)
  • Steel DF Plug: 2,000 PSI (138 bar)
  • Steel CJ Plug: 8,000 PSI (552 bar)
  • Steel J Plug: 4,000 PSI (276 bar)
  • Steel M Plug: 2,000 PSI (138 bar)
3UM3-B Socket/Female 3/8" 3/8" - 18"
Male NPT		 Brass 2.64"
(67.0mm)		 1.09"
(27.7mm)		 15/16" 300 PSI
(20 bar)
  • Steel DF Plug: 2,000 PSI (138 bar)
  • Steel CJ Plug: 8,000 PSI (552 bar)
  • Steel J Plug: 4,000 PSI (276 bar)
  • Steel M Plug: 2,000 PSI (138 bar)
3UBM3-B Socket/Female 3/8" 3/8" - 19"
Male BSPP		 Brass 2.64"
(67.0mm)		 1.09"
(27.7mm)		 15/16" 300 PSI
(20 bar)
  • Steel DF Plug: 2,000 PSI (138 bar)
  • Steel CJ Plug: 8,000 PSI (552 bar)
  • Steel J Plug: 4,000 PSI (276 bar)
  • Steel M Plug: 2,000 PSI (138 bar)
Dixon Valve & Coupling

Dixon Valve & Coupling

Dixon, founded in 1916, is a premier manufacturer and supplier of hose couplings, valves, dry disconnects, swivels, and other fluid transfer and control products. Our global reach includes a wide range of products for numerous industries including petroleum exploration, refining, transportation, chemical processing, food and beverage, steel, fire protection, construction, mining, and manufacturing.

Shop Parts by Dixon Valve & Coupling